Pillow block bearing housing always applied in pillow block bearings or plummer block bearing unit, it also as known as pillow block housing or plummer block housing. Our 2-bolt pillow block bearing housing are manufactured from high-strength cast iron as standard but are also available in cast steel or spheroidal graphite cast iron. More detail information for this 2-bolt pillow block bearing housing as below: Material: grey iron, ductile iron, steel casting, etc... Inner bore diameter: 1-20inches Surface treatment: painting, powder coating, zinc plating, clean & oiled. Why choose QFAP? We have specialized in producing high precision mechanical parts more than 12years, especially for the bearing housings, as a professional supplier for US standard bearing housings, QFAP produces bearing housings in a wide range of designs and sizes that are based on experience collected in all industrial areas, such li…